Sole-plate.



30 enlargement being at To more. securely hold the sole plate in proper position on the timber, we provide it with one or more transverse, downwardly y the wood between.

projecting flanges 12, which enter grooves 13 formed in the supporting timber. These grooves may be formed by making two transverse cuts with a saw and' cutting out In this way the sole plate is thoroughly secured to the timber, so thatit will not be possible to pull it loose by any strain to which it is likely to be subjected.

` The spacing of the slots 2,2, of opposite sidesoi the sole plate, is such as to it the bolt holes of those blocks as use two bolts at each end, while a block usin three bolts y' at each end will use all slots, an those using onebolt-at eachend will use the central slots only.

' What we. clairn'and desire to patent is:

1. A 'sole plate provided with means Jfor yanchoring it in xed position upon a timber and having' a plurality of series of complemental longitudinal slots toward each end,`

said slots comprising a centrally placed pair constituting one series and two pairs lying at opposite sides of 'the center and constituting another series, said slots having sides undercut to hold bolt heads and being enlarged at one end to pass the bolt heads, said the outer ends ot the central slots and at the inner ends oi' the outer slots. l

2. A sole plate provided with means for anchoring it in fixed position upon a timber and having a plurality of series of complemental longitudinal slots toward each end, said slots comprising a centrally plac'ed pair constituting one series and two pairs lying at opposite sides of ing another series, said slots having sides undercut to hold bolt heads and heilig enlarged at one end to pass the bolt heads, said enlargement being at the outer ends of the lcentral slots and at the inner ends of the outer slots, and an upstanding lug at each end threaded to receive adjusting bolts.

3; A sole plate having transverse ribs adapted to be let into a supporting tilnber and holes for securing bolts, and also having a plurality of series of complementa-l longitudinal slots toward each end, said slots comprising a centrally placed pair constituting one series and two lpairs lyi'ng at opposite sides of the center and constituting the center and constituti the inner ends of theI 

